Alnico Button Magnet Countersunk Magnet Expert 3/4 in Dia x 1/2 in

Description

Product Overview

The Alnico Button Magnet from Magnet Expert is engineered for high‑performance fastening in demanding industrial environments. Constructed from premium Alnico alloy, each magnet delivers a reliable 1.8 kg (approximately 4 lb) pull force despite its compact 3/4 in (19 mm) diameter and 1/2 in (12.7 mm) thickness. The design incorporates a precisely machined 5 mm central hole, allowing the magnet to be easily mounted on panels, brackets, or other components using standard fasteners. With an operating temperature rating of up to 500 °C (932 °F), the magnet maintains its magnetic strength even in high‑heat applications such as furnaces, ovens, and hot‑press equipment. The product is supplied in a pack of four, providing a cost‑effective solution for multiple fastening points or for creating a modular magnetic system. Dimensions, weight, and pull specifications are carefully balanced to ensure both ease of handling and robust performance.

Usage

These Alnico button magnets excel in a wide range of material‑handling scenarios. In manufacturing lines, they can secure conveyor rollers, guide rails, and sensor housings without the need for permanent mechanical fasteners, simplifying maintenance and reducing downtime. Their compact size makes them ideal for mounting on control panels, switchgear enclosures, and electrical cabinets where space is limited but a strong magnetic hold is required. The high temperature tolerance enables use in heat‑treated processes, metal casting molds, and kiln doors, where conventional magnets would lose strength. Additionally, the central hole allows integration with custom brackets or 3‑D‑printed mounts, providing flexibility for engineers designing bespoke fixtures. Whether used in automation equipment, robotic end‑effectors, or simple tool holders, the magnet’s pull force and durability ensure a secure connection that can be released quickly when needed.

Why Choose Us

Choosing Magnet Expert means selecting a partner committed to quality, consistency, and customer satisfaction. Our Alnico magnets are produced under strict quality‑control protocols, guaranteeing that each unit meets the advertised pull force and temperature rating. The alloy composition is optimized for maximum magnetic flux density while resisting demagnetization, even after repeated exposure to high temperatures. We provide comprehensive technical documentation and responsive engineering support to help customers integrate the magnets into their designs efficiently. Our packaging of four magnets per pack reduces inventory complexity and offers a cost advantage for bulk applications. Moreover, Magnet Expert stands behind every product with a clear warranty and a dedicated after‑sales service team ready to address any performance concerns, ensuring long‑term reliability for your projects.

Key Features

• High pull force of 1.8 kg in a compact 3/4 in diameter for strong, reliable fastening.
• Operates safely up to 500 °C, making it suitable for high‑heat industrial processes.
• Precision‑machined 5 mm central hole enables easy mounting on panels and custom brackets.
• Pack of four provides flexibility for multiple mounting points and reduces overall cost.
• Backed by Magnet Expert’s comprehensive warranty and responsive technical support.

FAQ

What is the maximum temperature this magnet can withstand?

The Alnico Button Magnet is rated for continuous operation up to 500 °C (932 °F) without loss of magnetic strength.

Can the magnet be used on non‑ferrous surfaces?

Alnico magnets attract ferromagnetic materials such as iron and steel. They will not adhere to non‑ferrous metals like aluminum or copper, but they can be used to hold ferromagnetic inserts on those surfaces.

How do I install the magnet using the central hole?

The 5 mm central hole is designed for standard #6‑32 screws or bolts. Align the magnet with the mounting surface, insert the fastener through the hole, and tighten to secure the magnet in place.

Is the pull force affected by the operating temperature?

While the magnet maintains its pull force up to the rated temperature, extreme temperature cycling may cause a slight reduction in strength over time. Under normal operating conditions within the specified range, performance remains consistent.

What warranty does Magnet Expert provide for these magnets?

Magnet Expert offers a one‑year limited warranty covering material defects and performance issues, backed by a responsive customer service team ready to assist with replacements or technical guidance.